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Re: Adding sound to program.

that is not a constructor. It's a method.
Add this line first thing in the run method:
System.out.println("run this="+ this);
And look what is printed out when it executes.
Now look in the folder containing the class files and see if there is a class file with the same name as was printed by the above.

Re: Adding sound to program.

Error Exception in thread "AWT-EventQueue-0" java.lang.RuntimeException: Uncompilable source code - Erroneous sym type: Bluemoon.PlaySound.run
at Bluemoon.Bluemoon.BeginActionPerformed(Bluemoon.ja va:173)
at Bluemoon.Bluemoon.access$200(Bluemoon.java:24)
at Bluemoon.Bluemoon$3.actionPerformed(Bluemoon.java: 84)
at javax.swing.AbstractButton.fireActionPerformed(Abs tractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed (AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed (DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultB uttonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseRe leased(BasicButtonListener.java:252)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEven tMulticaster.java:289)
at java.awt.Component.processMouseEvent(Component.jav a:6504)
at javax.swing.JComponent.processMouseEvent(JComponen t.java:3321)
at java.awt.Component.processEvent(Component.java:626 9)
at java.awt.Container.processEvent(Container.java:222 9)
at java.awt.Component.dispatchEventImpl(Component.jav a:4860)
at java.awt.Container.dispatchEventImpl(Container.jav a:2287)
at java.awt.Component.dispatchEvent(Component.java:46 86)
at java.awt.LightweightDispatcher.retargetMouseEvent( Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(C ontainer.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Conta iner.java:4422)
at java.awt.Container.dispatchEventImpl(Container.jav a:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2713 )
at java.awt.Component.dispatchEvent(Component.java:46 86)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.j ava:707)
at java.awt.EventQueue.access$000(EventQueue.java:101 )
at java.awt.EventQueue$3.run(EventQueue.java:666)
at java.awt.EventQueue$3.run(EventQueue.java:664)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPri vilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPri vilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:680)
at java.awt.EventQueue$4.run(EventQueue.java:678)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPri vilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java: 677)
at java.awt.EventDispatchThread.pumpOneEventForFilter s(EventDispatchThread.java:211)
at java.awt.EventDispatchThread.pumpEventsForFilter(E ventDispatchThread.java:128)
at java.awt.EventDispatchThread.pumpEventsForHierarch y(EventDispatchThread.java:117)
at java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:113)
at java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:105)
at java.awt.EventDispatchThread.run(EventDispatchThre ad.java:90)
-------------------------------------------------------------------------------------------------
I checked in the src folder for my project and there was no class file with that name.